Death after Lasix in dogs

31 reports to the FDA describe death in dogs given Lasix. That is 35% of all reports for this medicine, compared with 5.2% across reports for all dog medicines, so it is reported unusually often with this medicine.

31Reports
100%Marked serious
0.0%Recovered
100%Died or euthanised
15 daysTypical onset
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How soon it started

Same day
7 24%
1–2 days
2 6.9%
3–7 days
3 10%
1–4 weeks
6 21%
Over a month
11 38%

How the animals did

Died
15 48%
Euthanised
16 52%

Problems reported at the same time

Lethargy
7 23%
Liver problems
7 23%
Kidney problems
7 23%
Breathing problems
7 23%
Weakness
7 23%
Collapse
7 23%
Seizures
6 19%

Age of the animals

Under 1 year
1
1–3 years
0
4–7 years
1
8–11 years
9
12+ years
19

About this medicine

Type: medicine.

Questions owners ask

Can Lasix cause death in dogs?
31 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
How soon after a dose was it reported?
In half of the reports with dates, it started within 15 days of the first dose.
What should I do?
Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).

Death with similar medicines

All reported side effects of Lasix in dogs · Medicines most reported with death